gcc/libstdc++-v3/libsupc++/new
Paolo Carlini d66ae36a8b libstdc++/3150: revert 2001-11-30 commit.
2002-01-09  Paolo Carlini <pcarlini@unitus.it>

	libstdc++/3150: revert 2001-11-30 commit. DR266 only means
	that the destructors should be removed from the descriptions
	in the standard: writing them explicitly allows the vtable
	heuristic to work. For additional information see:
	http://gcc.gnu.org/ml/libstdc++/2002-01/msg00090.html
	http://gcc.gnu.org/ml/libstdc++/2002-01/msg00110.html
	http://gcc.gnu.org/ml/libstdc++/2002-01/msg00155.html
	* libsupc++/exception (bad_exception::~bad_exception()):
	Reintroduce declaration.
	* libsupc++/new (bad_alloc::~bad_alloc()): Same.
	* libsupc++/typeinfo (bad_cast::~bad_cast()): Same.
	(bad_typeid::~bad_typeid()): Same.
	* libsupc++/eh_exception.cc (bad_exception::~bad_exception()):
	Reintroduce definition.
	* libsupc++/new_handler.cc (bad_alloc::~bad_alloc()): Same.
	* libsupc++/tinfo.cc (bad_cast::~bad_cast()): Same.
	(bad_typeid::~bad_typeid()): Same.

From-SVN: r48687
2002-01-09 20:39:27 +00:00

93 lines
3.4 KiB
C++

// The -*- C++ -*- dynamic memory management header.
// Copyright (C) 1994, 1996, 1997, 1998, 2000, 2001, 2002
// Free Software Foundation
// This file is part of GNU CC.
//
// GNU CC is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.
//
// GNU CC is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with GNU CC; see the file COPYING. If not, write to
// the Free Software Foundation, 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License. This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
/** @file new
* This header defines several functions to manage dynamic memory and
* handling memory allocation errors; see
* http://gcc.gnu.org/onlinedocs/libstdc++/18_support/howto.html#4 for more.
*/
#ifndef __NEW__
#define __NEW__
#include <cstddef>
#include <exception>
extern "C++" {
namespace std
{
/** @c bad_alloc (or classes derived from it) is used to report allocation
* errors from the throwing forms of @c new. */
class bad_alloc : public exception
{
public:
bad_alloc() throw() { }
virtual ~bad_alloc() throw();
};
struct nothrow_t { };
extern const nothrow_t nothrow;
/** If you write your own error handler to be called by @c new, it must
* be of this type. */
typedef void (*new_handler)();
/// Takes a replacement handler as the argument, returns the previous handler.
new_handler set_new_handler(new_handler);
} // namespace std
//@{
/** These are replaceable signatures:
* - normal single new and delete (no arguments, throw @c bad_alloc on error)
* - normal array new and delete (same)
* - @c nothrow single new and delete (take a @c nothrow argument, return
* @c NULL on error)
* - @c nothrow array new and delete (same)
*
* Placement new and delete signatures (take a memory address argument,
* does nothing) may not be replaced by a user's program.
*/
void *operator new(std::size_t) throw (std::bad_alloc);
void *operator new[](std::size_t) throw (std::bad_alloc);
void operator delete(void *) throw();
void operator delete[](void *) throw();
void *operator new(std::size_t, const std::nothrow_t&) throw();
void *operator new[](std::size_t, const std::nothrow_t&) throw();
void operator delete(void *, const std::nothrow_t&) throw();
void operator delete[](void *, const std::nothrow_t&) throw();
// Default placement versions of operator new.
inline void *operator new(std::size_t, void *place) throw() { return place; }
inline void *operator new[](std::size_t, void *place) throw() { return place; }
//@}
} // extern "C++"
#endif